Multiple Choice QuestionsThe given figure shows L.S of the seed of maize. What do A, B, C and D represent?
A : endosperm, B : scutellum, C : plumule, D : coleoptile
A : scutellum, B : pericarp, C : radicle, D : coleoptile
A : endosperm, B : scutellum, C : radicle, D : coleorrhiza
A : scutellum, B : pericarp, C : plumule, D : coleorrhiza
Select the correct statement.
Acetobacter aceti produces citric acid
Saccharomyces cerevisiae is used as clot buster
Penicillium notatum restrict the growth of Staphylococci
Methanogens are found in aerobic conditions
Which of the following diseases is also called Christmas disease?
Sickle-cell anaemia
Haemoglobinuria
Myocardial infarction
Haemophilia- B
Which of the following is correct?
All fungi are filamentous.
Transfer of DNA from one bacteria to another bacteria cannot take place
Virus cannot have both DNA and RNA
Protists reproduce asexually only
What do A, B, C and D represent?
A- Infundibulum; B- Fertilization; C- Myometrium; D- Morula
A- Infundibulum; B- Fertilization; C- Endometrium; D- Blastocyst
A- Isthmus; B- Fertilization; C- Myometrium; D- Blastocyst
A- Isthmus; B- Fertilization; C- Endometrium; D- Morula
B.
A- Infundibulum; B- Fertilization; C- Endometrium; D- Blastocyst
Infundibulum is funnel shaped and is closer to the ovary. Its edges possess finger like projections called fimbriae that helps in collection of the ovum after ovulation.
Fertilization is the fusion of haploid gametes, egg and sperm to form the diploid zygote.
Endometrium is the inner epithelial layer, along with its mucous membrane, of the mammalian uterus.
Blastocyst is a structure formed when embryo reaches the uterine cavity after 5 to 6 days of fertilization.
What is a plasmid?
Bacterial, linear, dsDNA
Extrachromosomal linear RNA
Extrachromosomal circular dsDNA
Autonomously replicating circular RNA
The concept of chemical evolution is based on
interaction of water, air and clay under intense heat
effect of solar radiation on chemicals
possible origin of life by combination of chemicals under suitable environmental conditions
crystallization of chemicals
Which of the following is a correct match between crop, variety and resistance to diseases?
| Crop | Variety | Resistance to diseases |
| Wheat | Himgiri | White rust |
| Brassica | Pusa sadabahar | Black rot |
| Cowpea | Pusa komal | Bacterial blight |
| Chilli | Pusa swarnim | Chilly mosaic virus |
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